diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index 5e8342f864..894e9a51de 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -676,6 +676,7 @@ button {
                              (destructive-action, $destructive_color) {
     &.#{$b_type} {
       @include button(normal, $b_color, white);
+      @include focus-ring($fc: transparentize(white,0.1));
 
       &.flat {
         @include button(undecorated);